I have just begun collecting Star Wars cards - I was a big baseball card collector as a kid and for whatever reason I never ventured out of the sports card arena.

Last week I purchased 5 packs of the 30th Anniversary collection that was released last year (2007), and I'm looking to buy more. I'm not having much luck. I saw on EBay that there are several complete sets for sale, and some sealed boxes, but I enjoy the opening of the packs to complete my set. Does anyone know of a good source to purchase packs of cards?

Additionally, are there any other card collectors out there that have recommendations on what sets to collect?